青春期（系列）

Cheng Xiaoyu's parents are divorced, and in the eyes of her classmates she is a problem teen. Influenced by her parents and oppressed by social reality, Cheng Xiaoyu neither believes in family affection, nor in friendship, nor in love. She gave up her pursuit of the future and indulged herself, often going to game venues, hotels, discotheques. Wearing famous brands, smoking, drinking, worshiping money, skipping classes, fighting, going to nightclubs, playing with men, and basically doing all the bad things that can be done when young, in the eyes of her and her sisters, their own responsibility is to give up responsibility. Pubescence is a 2011 Chinese teen sex comedy film directed and written by Guan Xiaojie, starring Zhao Yihuan and Wang Yi. It is the first film in the Pubescence theatrical series. The film was a box-office hit and spawned three direct sequels: Paradise Lost, Pubescence 3, and Pubescence 4.

Paradise Lost is a 2011 Chinese teen sex comedy film and the sequel to the film Pubescence and the second film in the Pubescence film series.

Xiao Yu and Xiao Fei finally got together. Xiao Yu became a criminal police officer, while her ex-boyfriend became a drug dealer. The ex-boyfriend wanted to use Xiaoyu's special status to open up a channel to transport drugs to the mainland, and promised Xiaoyu a high salary. Xiaoyu decides to use this as an opportunity to catch them and even break ups with Xiao Fei to make her undercover story more believable.